A group of stamps is a cluster of one or more stamps that are connected along an edge or part of an edge to another stamp in the same connected group. This type of contest card looks for connected stamps that share a specific color, theme, or shape. A single isolated stamp is still considered a group.

In the example (rectangles in 1 connected group of your choice), you have a choice between a single rectangle (3 points) or the two connected rectangles (6 points). (This list is not exhaustive; several other groups are shown.) For the purpose of this type of card, squares are not considered rectangles.